rename, improve and add new features

* aosp/aospa/cm and jb roms support
* enhanced ccache support (requires trivial patch for build project)
* automatic prebuilts fetching
* interactive shell
* automatic jdk selection and openjdk workaround
* cosmetic improvements

Change-Id: Ida06b115e81f9bd2261c5ccf3f9f5307c75f7a2f